Plate-printing machine



`fune l0, 1924.

R. SATTLER PLATE PRINTING MACHINE June 1o, 1924. y l,497,304 A R. SATTLER PLATE PRINTING MACHINE Filed Aug. 19. 1922 92 sheetswsheet 2 IIHIIIII Hl lllll Mmmm H i 95, Y, I

. 4Z /NVENTOR A TToRNE y Patented ,lune 10, 1924.

PLATE-PRINTING MACHINE;

Appueatidnnied'August 19, waa-f sei-mino. y58239325 To all 'whom t may/concern.' i

Be" it lrnown thatl, RUDOLPHV SATTLER, a citizen of theUnited States, residing at Cincinnati, in thecounty of Hamilton? and State o'Ohio, have invented certain new and useful Improvements in Plate-Printing Machineaof which the following is a'speciication.

My invention relates to printingk from engraved plates, and more particularly to machines such as thoser disclosed and claimed in my patents,-No. 1,447,438 issued March `6,1923, No; 1,447 ,i434 issued March 6, 1923,'` and No. 1,447,435 issued March 6, 1923, on which my present invention is an improvement. Inl many respects, the present machine isthe same as the one specifi# callyv claimed inthe past mentionedV patent and this patent will be referred to lhereinV in 'connection with the description of sev; eral of the details, anda-lso is referred to as to broader claims therein for several parts of the'present machine. The object of the present invention is to further increase the ease and accuracyoi operation, and make the machine more convenient and safe for the operator. the course of the ensuing'description.

I attain these objects by the device illustrated, for example, in the accompanying drawings, in whichef Figure 1 is a plan-view, certain parts being broken away to reveal underlying details;

Fig. 2 is a lengthwise section, partially on the verticaltplane of theline 2 2 of Fig. 1, to showthe bed-return mechanism, and partially on the vertical plane of the line 2-2 of Fig. 1, to show the D-roller bearing mounting;

Fig. 3 is a rear elevation -oi the machine and parts of its support and side tables, parts ot vthe coversbeing broken away and` the return mechanism in raised position being indicated by dotted lines;

Fig. 4 is a partial lengthwise section von the vertical planeet theline 44 of Fig. 1, showing the meshing and locking mechanism'; j

Fig. 5 is a similar section on the vertical plane' of the line5-5 of Fig. 1, showing the guard mechanism, the-relative position of the' D-roller also being indicated, by dot? ted lines;

Fig. ('iisa partial side elevation showing Other objects will appear iny thel` D-roller holder and` bed-holding-zdog-.g an' F ig. 7 is i an enlargedlyertical Jsectional; detail' of the clamp-screw and its nutand loclrnut ingrelation to the arch-cap, part 'of which is fshown. y Y A The frame is likethatpf the' second land third patents referred to, compris-ingfa base 1, sides 2 and 8, and struts 4 connecting the sides. The bed 5 slides inguide'ways in the upper parts of the sidesf 2 and 3, rearwardly and forwardly, and is supportedbyirollers 6, :7 and 8, with straight lower faces 9 on these rollers. It diers from the one of the prior disclosure inhaving its 'lower side corr-- tinuous throughout its `major front part; and the pressure roller 10, mounted on ec,- centric adjustable" bearingsy 11 as lin the prior device, islcontinuousfrom endtoend to 'afford a firmer support Jfor this part-of the bed. Y n

Each frame side 2 or y3 has on-its'toprear-y pedestals 1.2 and front pedestals 13; the rear ones having ears'14, to which are pivoted the rear ends of substantially-semi-circular arch-caps 15; having their `front ends over the respective ront'pedestals 13, andrecessed above to ali'o'rd flat tops,'from which openings extend down through the caps`.- To hold each cap down, a tension rod` `16'is fixed inthe respective-pedestal 13, entending up rthrough the arch-capfopening, `'and threaded inits upper end part. The cup? shaped nut 17 has itsV bottom threaded -onto this rod and has its top open'and loosely re-V ceiving the tubular lock-nut 18-`threaded onto the rod, with radial opposite slots 19 in its top, andA compressing a spring 20, coiled around the rod, against the bottom of the cup. A. rod 21 through the top of the cup, engaging in the lock-nut slots 19, holds the parts in adjusted position and-affords a linger-hold for screwing the deviceup or down on the'rod 16.

0n its interior under side, each arch-cap 15 has side `flanges 22, and into the hollow `of this under side, between these `flanges, the' ball-bearing 23 lits snugly, supported by ya compression spring 24 rset in a socket in the respective frame-side top betweenthe pedes tals 12 and 13. Screwing the nut' or cup-17 up or down on the rod or screw '16,' allows this bearing28 to rise as pressedup by the; spring 24, or depresses this kbearing aganstj' the pressure ofthis spring,while maintaining the bearing firm in its socket in the under side of the arclneap. The spring within the cup 17, more or less tightly binding the threads of the tubular lock-nut 18 against the threads of the screw 16, according to the up or down adjustment of this lock-nut While the bar 21 is removed, serves to prevent slippage of the main nut or cup 17 from its adjusted position on the screw 16, yet allows this nut 17 to be turned manually without any preliminary operation. The ball-bearings23 support the D- roller 25, of segmental shape as in my previous disclosure, to rotate over the bed 5, by means of the transverse shaft 26 through the roller and snugly fitting in the inner members of the ball-bearings.

As in the previous device, the mutilated gear 27 is fixed to the roller 25 and its shaft 26, next to the right-hand bearing (looking from the front) 3 and a rack 28 is mounted along the right-hand side of the bed 5 to travel therewith, having teeth upward to mesh with the toothed part of the gear 27 at the proper time, and this rack can slide lengthwise by virtue of a spring 28 at its front end, asfully described in my prior patent last mentioned. The shaft 26 ei;N tends out at the left, with a spur-gear 29 clamped thereon, meshing with a similar gear 30, which in turn meshes with a spurgear 31 twice its diameter; these gears being rotatably mounted ou the frame side 2 and making up a train reaching from the il roller down tothe rear of the machine, as in the previous device. The large gear 31 carries the locking yoke 32 and the geen sectors 33 adjacent the diametrically oppo site ends of this yoke, as in that device.

Theinain shaft 34 reaches out to the left from the casing 35 and carries the rotor 36 at its outer end, between which and the casing 35 it has a bearing 37 eXtendinOr through the frame side 2. This rotor 36 comprises the hub 38 and the flange 39 on the outer end of this hub. A cover 40 surrounds the gears and this rotor. This mechanism is substantially the same as that in my previons disclosure, except that the brake therein shown is here omitted; and l have provided for insuring the correct timing` of the mechanism, as will be described. Thus, as as in the previous device, the rotor hub 3S has a slot carrying the segmenthar 41 projecting radially, with teeth on its end to mesh with either one of the gear-sectors 33:

and the locking-segment 42 is fixed to the inner side of the flange partly around the hub 38, to swing into either concave end of the locking-yoke 32, having its advanced end rounded, but its opposite end being radial to the shaft 5:3 -Near the rounded end of this segment 42, the timing pin 43 is fixed in the inner side ofthe liange 39, at such a position that it will engage With the outer straight edge 32 of the locking-yoke 32, coming up from below as the shaft 34 rotates over backward. This timing pin 43 thus is adapted to guide the corner or horn of the yoke 32 in between itself and the segment 42 to insure the correct positioning of this yoke and the segment 42 to each other as they are about to coact for stopping this mechanism and the D-roller 25 by the fitting of the convex segment 42 in the concave locking-yoke end, as best seen in Fig. 4.

The mechanism within the casing is the saine as in my prior disclosure, comprising the clutch 44 which is allowed to mesh by depressionof the startingdever 45, at the front left side of the machine, to which the clutch is operatively connected by the starting-shaft 46 journaled along from front to rear inside the frame at the left, with an arm 47 projecting into the casing 35 for connection to the clutch-controlling bar or finger 48. Also, this mechanism comprises two sets of gears by which the shaft 34 may be driven at either one of two speeds from the worin 49, accordingly as these gears are shifted by the shifter-shaft 50 extending out to the front of the machine. T he details of the clutch 44 and this change-speed device being fully set forth in the third mentioned patent, further description thereof herein isdeemed unnecessary. However, l have provided a -holdout device for the clutch 44, comprising a small lever 51 fulcrumed on the j ournal-stud of the front lefthand bed-supporting roller G between this roller and the inside of the frame-side 2, with an upper arm 52 engaged by a pin 53 fixed in the adjacent edge of the bed 5 below the frame top, to force this arm 52 for ward as the bed 5 returns to its forward position, and with a lower arm 54 depending alongside the starting-shaft 46 at the left thereof. On this shaft 46 is lined a block 55 with a flat left side having at its front end a shoulder 56. lVhen the bed travels backward, carrying its pin 53 away from the upper arm 52, the lever 51 is swung by a spring 56, coiled around the fulcrum stud with one end engaging the lever and the other end engaging the frame side so that the lower arm 54 swings alongside the (iat part of the block 55 until stopped by the shoulder 56. In this position, the lever arm 54 prevents depression of the starting-lever 45 and turning' of the starting-shaft 46; and it will have this position except when the bed 5 is at its forwardmost or stock-receiving position, when it is proper to depress the lever 45 and throw the clutch in for starting the bed backward. This provision finds its utility in conjunction with an improvement which I have made in the driv-` ing and control of the bed 5, which now will be described.

The shaft 34, at the right-hand side of all.

the casing 35, carries the crank 57, similar to that ot' the prior device; but carrying a roller 58. The bed has the depending ears 59 near its rear end, to which is connected the link 60 also connected to the upper end part ot the main lever 6l having its ful` crum 62 in the rear bottom part of the casing 35. These parts are similar to the prior device, except that the lever 61 has no torwa-rd guide for coaction of the crank 57 therewith; merely having the rear guide 63 against which bears the roller 58 ot the crank, so that the crank 57 drives the bed backward, but cannot cause its return torwardly. For eliecting this return, a web 64 has its end tixed to the rear end o' the bed 5 at the right, inside the trame, and passes torwardly, downwardly and to the rear, around a small sheave 65 journaled on the same stud with the forward one 7 ot the two rear bed-supporting rollers at that side, and then over another similar sheave 66 similarly journaled on the stud of the. other one of these rollers, 8. From here the weby 64 passes vertically downward along a guide 67 extending up from the rear end ofthe base l and has its lower end fixed in an eye on the upper end of a weight-rod 68 that passes down through and is guided by a toot 69 on the lower end oft this guide 67. The lower end of the rod 66 carries a weight 70, and has a spring 7l. coiled around it above the weight 7() which is compressed between this weight and the guide-'foot 69 as the bed approaches its rearmost position. rlhis spring 7l thus cushions, or brakes, the rear end of the bed travel, taking the place of the brake which l provided around the rotor hub 3S of the mechanism in my previous machine mentioned. The bed is returned forward by gravity, acting on. the weight 7 O; and it will be held by this weight, with the guide 63 oLt the main lever held firmly against the crank roller 58.

This eliminates any irregularities or knocking` due to wear or inaccurate fitting oil a crank block between two lever guides, as in the prior device.

To cushion the front end o t the bed travel, the plate 72 which is' mounted across the rear end of the trame top, with its end parts forming clips to hold the bed 5 down in guides in the trame, as in the prior disclosure, 'termed in its middle, on top thereof, a horizontal rearwardly opening dash-pot 73: and the rear end of the bed 5 has a rearwardly extended arm 74; with its rear end projecting upward and having fixed in it the plunger rod 7 5 carrying at ha s its 'trout end the plunger 76 to enter the dash-pot 73 in the latter part of the Jforward travel.' N ear its trent end the dashpot 73 has a port 77 controlled by a small check-valve 78 which admits air more 'freely than it allows the air to escape; thus avoiding obstruction to rearward starting,l but causing some compression of air as the plunger 76 enters at ending of the'foi'wardr return stroke. However, the creation ot' some degree oi vacuum inside the dash-pot at starting backward is useful in preventing too sudden starting and jarring of the stock fromv its position; thus contributing tothis result along with the lever and link arrangement as fully described and as claimed in my third mentioned patent. To secure these results with this port and check-valve, ther latter is made adjustable by means oi' the small `tube 79 screwed into Ythe port above the valve 7 8, which is inthe form of a ball pressed up aga-inst this tube by a small spring 80 resting on an' annular shoulder in the lower end of the port '77. A. lock-nut 8l holds the tube 79 in'adjusted position.

As the bed is returned "forward by gravity,it is ,possible to stop it manually, as by the operator leaning against it, before 1t reaches its correct extreme 'forward position; or to push it back from lthis position in the saine manner, so far as the driving mechanism including the maint lever 6l is concerned. Should it be thus positioned, and then the clutch 44: thrown in, the machinewould be operatedout of time, with possible damage. Hence thesmall lever 5l preventing this unless the bed is fully forward, as previously described.

Also, it is desirable to prevent manual pushing ot the bed 5 back from this position as just mentioned. Also, as the D-roller completesits revolution under thenction of the mechanism comprising,` the locking-yoke 32, and stops by the coactionl of this yoker and the segment 4 2 as before mentioned, and as is fully set forth' in my third mentioned patent, this D-roller' 25 has a preponderance of weight leaning-over backward, as clearly seen-where lthe roller 25 is indicated rby dotted lines in Fig. 5. The result is that, due to necessary back-lash in the gearing ot the mechanism mentioned', this roller drops slightly as the locking-yoke 32 and segment 42 complete their stopping coaction, and this produces a slight jar of the entire machine when started again and picking up this roller 25 from this droppedback position.

l 'provide for avoiding this back-drop of the D-roller, as well as guarding against untimely back-travel of the bed 5, in a single device. it the right, the D-roller shaft'26 extends out past its' bearing in the arch-cap l5', and a cam 82 is tixed to turn with this shaft. This, cam 82 has a periphery that -in'- creases in radius from a point that lies substantially radially to the rear of the shaft 26 when the D-roller is stopped, as seen in the drawings, around to an abrupt drop 83 back to this point.y Close to the greatest radius, a lug-'platev is vfixed to the inner side of the cam, projecting out past the cam periphery with its periphery of increasing radially outward distance from a point about 90o in advance of the drop 83 to terminate abruptly somewhat in advance of the drop 83, with a concave end 84.

The lever is fulcrumed on the frame side below and to the rear of the shaft 26 and extends up and leans forwardly with a roller 8G bearing on the cam4 periphery and fitting snugly in the concave rear end 84 of the lug-plate on the cam, to hold the -roller Yin its stopped position without back-drop and ready to start over forwardly without shock as the segment-bar 41 meshes with the gear sector 33 when the clutch 44 is thrown in. A spring 87, at the fulcrum,l with ends, respectively, on the lever 85 and on the frame, forces this lever forward against the. cam 82 as just described.v Y

rllhis lever 85 carries, inside the frame,

over the edge partof the bed 5, a housingl 88, open at its bottom and covering a dog 89 fulcrumed on the samel pin with the lever 85 and helddown by a spring 90 between its top and a screw 91 in the housing top, by which the spring may be adjusted.

-The edge part of the' bed 5 has on top a lug 92 with gently inclined front and undercut rear end; and the dog 89 has a nose 93 on its rear end with front sloped up rearwardly to wedge down under the rear end of the lug 92 if the bed starts backward. As the D-roller starts over forward, the roller 86 drops forward at the drop 83, and with it the lever 85, raising the housing 88, The dog 89 has its front part engaged with the housing, and iseraised therewith, out of the path of the *bedl lug 92. The bed 5, owing to the lever-and-link driving means, acted upon by the crank, starts very slowly, but the D-roller starts more rapidly, from its directly engaged connection through sector 33 and ban 41; so that the latter has ample time to remove the dog 89, which does not bind the bed lug 92 closely, but permits a negligible amount of backward movement of the bed when in the path of the lug. Wlhen the bed 5 returns forwardly, the dog V89 rides up on the inclined front of the lug 92, spring yielding, and then is forced down behind it by the spring; the D-roller having long since come around and stopped with the arm or lever 85 held back with the doO down in the nath of the lufr. s, a

bar 95 under the D-roller. reduced portion,

when the D-i'oller is stopped as seen in the drawings. This lever h-as a roller 98 bearing on the periphery of the cam 94. About half of this periphery is co centric with the shaft 26, but its other half recedes rapidly radially inwardly, from both ends to its middleand holds the roller 98 for holding the bar 95 down in the described position. lis the D-roller starts over forward, the roller 98 rides out onto the higher parts, swinging the lever 96 upward and forward, and the bai' therewith, out of the path of the desee-lining larger operating part of the .lrolleia and forcing the hand ofthe operator away therefrom if not removed in time by the operator.

ln my present machine l have iliade the bed much wider in proportion to the maximum `dimension of plate to be operated upon, which, in any plate printing-machine is much smaller than the bed surface. This is to afford the operator ample room for operating at the rapid rate permitted by power operation. The clip bar 99 which holds the bed down at the left is carried forward past the front end of the frame, covering the bed guideways at extreme forward position, as also is the cover 100 over the rack 28 at the right. This prevents escape of the lubricant of these operating parts, or contact therewith, avoiding contamination of the ink and soiling of the stock. A tray 101 is :mounted on the front end of the bed for further convenience of the operator.

il s suggested in the patent last mentioned, instead of having the motor directly conl ected with the sha-ft of the worm 49 of the driving means, the motor 102 is mounted on a shelf 109 supported on the legs 104 of the machine, partly shown in F ig. 3. The motor shaft carries a fly-wheel 105 and a pulley 106, and a belt 107 passes from this pulley up through an opening 108 in the base 1, to a pulley 109 on the shaft 110 of the worm 49.

rllhe forward part of the shaft 110 has a trunnioned bearing 111 on pedestals of the base 1, jierinitting` it to adjust to varying strains or inaccuracies of alinement in assemblage. The front end of this bearing 111, which extends alongside the support 112 of the heateramp 118, is recessed around the sl'iaft 110, and this shaft has a key 114 that can be engaged by a suitable implement, such as a crank, inserted in the recess of the bearing. This permits the machine to be operated manually in the course of setting it up and adjusting its various parts to operate in time with each other as before described.

Due to theV combination of the crankroller and weight for driving the bed, and the D-roller holder to eliminate shock in starting the lll-roller, as well as the more certainly correct relation of the locking llO elements 32 and 42, insured byy the timing pin 4S, the operation of the machine 4is extremely smooth and regular. These parts contribute to this in conjunction with the crank, lever and link arrangement, for driving the bed, and the rack and segmentgear tor driving the D-roller from the bed, which are the special subject matter o1" the third mentioned patent. 'No special holders 'for the, plate i (Fig, l) to preventits slippage, are needel, as were provided in said prior device.

The plate may be secured to the bed by some adhesive, such as soap, for instance.. Placed on the bed, face up, the plate is'inked in the usual manner. The D-roller carries a suitable blanket,clamped thereon as well known in the art; and as 'tully described in my prior patent, the rack and segment are so related thatv the bed and D-roller will have the same surface speed when the blanket reaches the stock, which has been placedface down on the plate. The machine is started `by depressing lever ,45, which is permitted sinc bed 5 has pushed small lever 5l away from block 55, This allows clutch itil to mesh, the driving means starting the crank 57,

which starts the bed 5 very slowly backward against whateverpressure 'might result from imperfect inflow of air to-dashpot 73 as betere mentioned. Segment-bar Lil, through the gearing, starts D-roller at the same time. but more rapidly, removing dog l89 from path ot lug 92, so that bed 5 is tree to travel in its printing movement.

The segment gear 27 now meshes with the rack 28 while segment-bar ll unmeshes from gear sector 83; the bed now controllingl the speed of the D-roller, since the D- roller is driven by the bed. Tl yis backward travel is raising` weight TO, and at end-ing will be rushioned by compression ot spring 7l. This weightV holds the lever 6l torward against the crank roller 58 so that there is no jar due to wear in these parts. ln return movement, the-crank roller 58 is traveling near the tnlcruni ot the lever 6l, and the compressed spring 7l. together with the weight, starts the bed forward, on its return, quickly.

As t-he bed reaches the rear end oit stroke, rack 28 releases gear 27, after having raised D-roller 25 away trom bed 5, and segment l2 and yoke 32 assume the duty of holding the D-roller up after completing the slight remainder ot' its rotation. lt is in this transfer oit the D-roller control from Vbed 5 to locking elements 4-2 and 32 that the timing pin 4B serves .its purpose; compelling these two parts 42 and 32 to'lit together as designed to t, whatever looseness there may be in the machine parts` with the radial end of the segment 42 in the deepest part ot the coneavity ot the end of Aa printing movement the yoke 32. lt is to insure further that the D-roll'er 'will have its yoperative connection immediately engageable, at ythe bar 4l and sector 33, without impact, that lthe holding means comprising the roller v8e engages the end 84: on the cam Vof the D- roller. it the end et the forward return movement oit the bed, the dash-pot 78cushions the travel, which aga-i'nis very slow, due to the crank, lever and link drive; and the clutch e4 automatically immeshes,'upon which the machine is ready tor a recurrent operation.

The various details have vbeen somewhat specifically described, to make clear the construction and use of my invention, asis required, but l do not wish to be understood as being limited to such precise' Vshowing and description, but having thus Vfully described my invention, what I claimV as new and desire to secure by Letters Patent 1S 2 1. In a machine of the character described, in Vcombination with a. bed having a printing movement and a return movement, pressing means, and mechanism causing said pressing means to press stock on said bed during part .ot said printingmovement, a crank, engaging means whereby said crank drives said bed in printing movement but notV in return movement, and means causing said return movement.

2. In a machine of the character de? scribed, in combination withpa bed having a printingmovement and a return movement, pressing means, and mechanism causing said pressing means to press stock on said bed during part ot said printing movement, a crank, a lever connected to said bed having a bearing whereby said crank drives ksaid bed in prin-ting movement but not in return movement, and means causing said return movement.

3. In a machine ot the character described, in combination with a bed having a printing movement `and a return movement, pressing means, and mechanism causing said pressing means to press stock on said bedduring part ot said printing movement, a crank, a lever connected to said bed having an elongated bearing, and a roller on said crank against said bearing, whereby said crank drives said bed in printing movement but not in return movement, and means causing said return movement. et. In a machine of the character described, in combination With a bedhaving and a return movement, pressing means, and mechanism: causing said pressing means to press stock on said bed during part of said printing 'movement, a crank, engaging means whereby ysaid crank drives said`bed in printing movement but not vin return movement, a spring re- Y sisting said bed near'the end of printing movement, andk means causing said return movement.

5. In a machine of the character described, in combination with a bed having a printing movement and a return movement, pressing means, and mechanism causing said pressing means to press stock on said bed during part of said printing movement, a crank, engaging means whereby said crank drives said bed in print-ing movement but not in return movement, a dash-pot resisting said bed near the end of return movement, and means for causing said ret-urn movement. t

6. In a machine of the character described, in combinationiwith a bed having a printing movement and a return movement, pressing means, and mechanism causing said pressing means to press stock on -said bed during part of said printing movement, a crank, engaging means whereby said crank drives said bed in printing movement but not in return movement, a spring resisting said bed near the end of printing movement, a dash-pot resisting said bed near the end of return movement, and rmeans tor causing said return movement.

7. In av machine of the character described, in combination with a bedk having a printing movement and al return movement, movable pressing means, driving means, an engageable operative connection permitting said driving means to have action causing movement of said pressing means uncontrolled by the speed of said bed and then disengaging to cease said action, and mechanism whereby said bed causes movement of said pressing means to press stock on said bed during part oiC said printing movement after said action is ceased, finally withdrawing said pressingy means from said bed, a crank turned by said driving means, engaging means whereby said 'crank drives said bed in printing movement but not in return movement, meansr for causing said return movement, a dog coming into retentive relation to said bed, against untimely printing movement, near the end of return movement, and means whereby said operative connection removes said dog from said relation upon recurrent operation.

8. In a machine of the character described, in combination with ya bed having a printing movement and a return movement, pressing means, and mechanism causing said pressing means to press stocky on said bed during part of said printing movement,a crank, engaging means whereby said crankl drives said bedin printing movement but not in return movement,means for causing Lsaid return movement, a clutch controlling operation of said crank, an. element holding said clutch to prevent saidoperation, and means whereby said `bed actuates said element at the end of return movement, to release said clutch.

9. In a machine of the character described, in combination with a bed having a printing movement and a return movement, movable pressing means, driving means, an engageable operative connection permitting said driving means to have action causing movement ot said pressing means uncontrolled by the speed ot said bed and then disengaging to cease said action, and mechanism whereby said bed causes movement of said pressing means to press stock on said bed during part of said printing movement after said action is ceased, finally withdrawing said pressing means from said bed, a crank turned by said driving means, engaging means'whereby said crank drives said bed in printing movement but not in return movement, means to cause said return movement, a clutch controlling operation of said driving means, an element holding said clutch to prevent said operation, means whereby said bed actuates said element at the end of return movement, to release said clutch, a dog coming into retentive relation to said bed, against untimely printing movement, near the end of return movement, and means whereby said operative connection removes said dog from said relation upon recurrent operation.

l0. In a machine ot the character described, in combination with a bed havinga printing movement antl a return movement, movable pressing means, driving means, an engageable operative connection permitting said driving means to have action causing movement ot said pressing means uncontrolled by the speed of said bed and then disengaging to cease said action, and mechanisrgi wherebyv said bed causes movement of said pressing means to press stock on said bed during part ot said printing movement after said action is ceased, Finally withdrawing said pressing means from said bed, holding means engaging directly with said pressing` .means to hold it away from said bed independently of action ot said operative connection, and means to reciprocate said bed.

il. In av machine ot the `character described, in combination with a bed having a `printing movement and a. .return movement, movable pressing means, driving means, an engageable operative connection permitting said driving means to have action causing movement of said pressing means uncontrolled by thespeed of said bed and then disengaging to cease said action, and mechanism whereby said bed causes movement ot said pressing means to press stock on said bed during part of said print-ing movement after said action is ceased, finally withdrawing saidk pressing means from said bed, timing element controlling' reengagement ot said operative connection vtor recurrent` operation ot said pressing means, and means to reciprocate said bed.

1n a machine ot' they character described in combina-tion with a bed having a printiL movement and a return movement, movabl pressing means, driving means, an engageable operative connection permitting said driving means to have action causing movement. ot said pressing means uncontrolled by the speed olv said bed and then disengaging to cease said action, and mechanism whereby said bed causes/movement ot said pressing means to press stock on said bed during part ot said printing movement after said action is ceased, nally withdrawing said pressing means from said bed, holding means engaging directly with said pressingnrezins to hold it away from said bed independently ot action ot said operative conectioma timing` element controiling reengagement of said operative connection tor recurrent movement o-said pressing means, and means to reciprocate said bed.

13. In a machine ot the character described, in combination with a bed yharing a printing movement and a return movement,

movable pressing means, driving'means, an

engageable operative connection permitting said driving means to have action causing vmovement of said pressing means uncon- .high-speedv power' device, gearing ot high ratio whereby said device operates said driving means at low speed, a crank turned by said driving means, engaging means whereby said crank drives said bed in printing movement but not in lreturn movement, means to cause said return moven'ient, and means for V'attachment otA an implement to said power device 'for operating said 'driving meansfmanually inv adjusting the relation ot said bed, pressing means, driving means and operative connection to each other.

let. `in a machine ot the character-'described, in combination with a bed having a printing movement and a return movement, movable pressing means, drivingmeans, an engageable operative connection permitting said driving means to have action causing movement ot said pressing means yuncontrolled by the speed or said bed and then disengaging to cease said action, and mechanism whereby said bed causes movement ot said pressing means to press stock on said bed during part of said printing movementvt aiter said action is ceased, finally withdrawing said pressing means from said fbed, holding means engaging directly with said pressing means to hold it away trom said bed independently ot action ot said operative connection, a crank turned by said driving means, engagingmeans whereby said-crank drives said bed in printing movement but not in return movement, means to cause said return increment, and a dog coming into retentive relation to said bed,against untimely printing move-ment, near the end of return movement, mounted on said holding means, said pressing means having a part witha recess receiving said holding means early in a recurringoperation, whereby said l'iold-ing means removes' said dog from said relation.v

l5. In a machine ot the character described, in combination with a bedhaving a printing movement and a return movement, pressing means, and mechanism. causing said pressing means to press stock onlsaid bed during part of said printing movement,` a crank, engaging means whereby said crank drives said lbed in printing movement but not yin return movement, a weight to cause said return movement, and a spring com- :pressed byv said weight, resisting said Ibed near the end ot printing movement.

16. ln a machine ot' the character described, in combination with a( bed having a printing movement and Va return movement, rollers onwhich said bed travels, pressing means, and mechanism causing said pressing means to press stock on ysaid bed during part of said `printing movement,- a c "ank, engaging .means'whereby said crank drives said bed in printing movement but not in. return movement,a sheave coaxial with one or" said rollers', a web connected to said bed and ruiming around said sheave, and a weight `hung on said web to cause said return movement. f

l. In a machine of the character Adescribed. in'combination with a bed having a printing movementv and areturn movement, pressing` means, mechanism causing said pressing means to press stock on said bed during part of said'printing movement, finally, withdrawing said pressing means from said bed, fa sheave, a web connectedto said kbed andwrunning around said sheave,a rod connected'to said web, a guide for said rod, a weight on said rod to vcause said returnanovement, and a spring coiled around said rodand compressed between said weight and said guide, resisting said bed, near the end ot printing movement.

18. In a machine ofthe character described, in combination with a bed having a printing kmovement and a return movement, pressing means, and mechanism causing` said pressing means to press stock on said bed during part of said kprmtmg movement, lfinally withdrawing sald pressing Vmeans yfrom said bed, means ltofrecipr'ocate mechanism causing rotation ot said pressing means to press stock on said bed during part of said printing movement, rfinally withdrawing said pressing means 'trom said bed, means to reciprocate said bed, a cam coaxial with said pressing means, a lever having a part engaging said cam, and a guard element mounted on said lever and yhaving a positionl across said bed between said bed and said pressing means when said pressing means is withdrawn from said bed, said cam having its periphery of increased radius whereby it swings said lever and moves saidguard element from said position in direction opposite to said printing movement as said pressing means approaches said bed in the beginning ot pressing movement.

20. In ak machine ot the character described, in combination with a bed having a printing movement and a return movement, frame elements at opposite sides of said bed, rotary pressing means, and means for reciprocating said bed, arch elements tulcrumed on the respective `trame elements, each having a recessed lower side, bearings for said pressing means, springs holding Ysaidbearings up against said recessed lower sides of the respective arch elements, upright threaded tension elements on the respective frame elements, cup-shaped nuts on these tension elements, holding the respective arch elements down against the bearings, tubular lock-nuts threaded on the upper parts of said tension elements and litting loosely inside of said cups, members extending across said nutsholding said lock-nuts from rotation7 and springs between said lock-nuts and the bottoms oi"Y from said segment gear, an operative con-y nection from said mechanism to said pressing means comprising a pair of rotary meshing means and a pair of rotary locking means, said locking means locking for holding said pressing means away from said bed while said bed reciprocates in the return direction, a cam rotating directly with said pressing means, having a periphery ot radius increasing to an abrupt concave end, and an element tulcrumed on said machine with a part against said periphery to enter the concavity of said end as said locking means locks, to hold said pressing means away 'from said bed independently of said locking means.

22. In a machine oit the character described, a rectilinearly reciprocating bed, segmental rotary pressing means to press stoclr on said bed during reciprocation of said bed in one direction and to withdraw therefrom during reciprocation in return direction, mechanism having an operation to reciprocate said bed in the one direction but not in the return direction` means to cause said reciprocation in return direction, a. segment gear on said pressing means, a rack on said bed initially removed therewith from said segment gear, an operative connection from said mechanism to said pressing means comprising a pair ot rotary meshing means and a pair ot' rotary locking means, said locking means locking for holding said pressing means away trom said bed while said bed reciprocates in the return direction, a cam rotating directly with said pressing means, having a periphery of radius increasing to an abrupt concave end, an element fulcrumed on said machine with a part against said periphery to enter the concavity of said end as said locking means locks, to hold said pressing means away trom said bed independently of said locking means, a dog pivoted adjacent to said fulcrumed element, a projection on this element, a spring between said projection and said dog, and means on said bed engaged by said dog to prevent untimely movement ot said bed in printing direction, said cam having a following recess receiving said part of said fulcrumed element to permit said. dog to leave the path of said means on said bed, early in the operation of said pressing means.

23. In a machine of the character described, in combination with a bed having a printing movement and a return movement, movable pressing means, driving means, engageable operative connecting means permitting said driving means to have an action rcausing movement of said pressing means uncontrolled by the speed of said bed and then disengaging to cease said action, and mechanism whereby said bed causes movement of said pressing means to press stock on said bed during a part of said printing movement after said action is ceased, finally withdrawing said pressing means from said bed, a high-speed power device, gearing of high ratio whereby said device operates said driving means at low speed, a crank turned by said driving means, engaging means whereby said crank drives said bed in printing movement but not in return movement, means to cause said return movement, a spring resisting said bed near the :end of printing movement, a dash-pot resisting said bed near the end of return movement, a timing element controllingl reengagement of said operative connection for recurrent operation of said pressing means, holding means engaging directly with said pressing means to hold it away from said bed independently of action of said operative connection, a dog coming into retentive relation to said bed, against untimely printing movement, near the end of return movement, means whereby said operative connection removes said dog from said relation upon recurrent operation, a clutch controlling operation of said driving means by said power device, an element holding said clutch to prevent said operation, means whereby said bed actuates said element at the end of return movement, to release said clutch, and means for attachment of an implement to said power device for operating said driving means manually in adjusting the relation of said bed, pressing means, driving means and operative connection to each other.

24. In a machine of the character described, a rectilinearly reciprocating bed, segmental rotary pressing means to press stock on said bed during reciprocation of said bed Vin one direction and to withdraw therefrom during reciprocation in return direction, mechanism having an operation to reciprocate said bed, a segment gear on said pressing means, a rack on said bed initially removed therewith from said segment gear, an operative connection from said mechanism to said pressing means comprising a pair of rotary meshing means and a pair of rotary locking means, one locking means eX- tending partly around the other with a horn at its side first approached by said other, and a timing pin carried around with this other locking means, near the advanced end thereof, engaging with the horn of said one locking means and guiding the one locking means into correct relation with the other.

25. In a machine of the character described, in combination with a movable bed i and pressing means coacting therewith, driving means for said bed and said pressing means, and a frame for said bed, pressing means and driving means, comprising a base, a support for said frame, a motor mounted on said support below said base, a pulley rotated by said motor, gearing of high ratio operatively connected to said driving means, comprising a shaft above said base, a pulley on this shaft, and a belt passing through said base from the first mentioned to the second mentioned pulley, a trunnioned bearing for said shaft, on said base, permitting said shaft to adjust to varying strains and to inaccuracies of alinement in assemblage of said machine.

iso

26. ln a machine of the character de-V scribed, in combination with a movable bed and pressing means coacting therewith, driving means for said bed and said pressing means, and a frame for said bed, pressing means and driving means, comprising a base, a support for said frame, a motor mounted on said support below said base, a pulley rotated by said motor, gearing of high ratior operatiyely connected to said driving means, comprising a shaft above said base, a pulley on this shaft, and a belt passing through said base from the first mentioned to the second mentioned pulley, a trunnioned bearing for said shaft, on said base, having a recess in one end around said shaft, and means on said shaft for attachment of an implement inserted in said recess, for operating said driving means manually.

RUDOLPH SATTLER. 

